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What are the pros and cons of the Apache Parquet format compared to . . . 30,36,2 Parquet files are most commonly compressed with the Snappy compression algorithm Snappy compressed files are splittable and quick to inflate Big data systems want to reduce file size on disk, but also want to make it quick to inflate the flies and run analytical queries Mutable nature of file Parquet files are immutable, as described
How to read a Parquet file into Pandas DataFrame? How to read a modestly sized Parquet data-set into an in-memory Pandas DataFrame without setting up a cluster computing infrastructure such as Hadoop or Spark? This is only a moderate amount of data that I would like to read in-memory with a simple Python script on a laptop
What file extension is the correct way to name parquet files? <file-name> parquet : 1) This is the standard and most widely accepted naming convention 2) The compression codec is stored in the Parquet file metadata, not in the filename 3) Tools like Apache Spark, Hive, AWS Athena, and Snowflake expect parquet files regardless of compression
Inspect Parquet from command line - Stack Overflow How do I inspect the content of a Parquet file from the command line? The only option I see now is $ hadoop fs -get my-path local-file $ parquet-tools head local-file | less I would like to avoid
Python: save pandas data frame to parquet file - Stack Overflow Is it possible to save a pandas data frame directly to a parquet file? If not, what would be the suggested process? The aim is to be able to send the parquet file to another team, which they can
Convert csv to parquet file using python - Stack Overflow I am trying to convert a csv file to a parquet file The csv file (Temp csv) has the following format 1,Jon,Doe,Denver I am using the following python code to convert it into parquet from p
Spark parquet partitioning : Large number of files I am trying to leverage spark partitioning I was trying to do something like data write partitionBy ("key") parquet (" location") The issue here each partition creates huge number of parquet files